Error installing webgui LTT (Postgresql)

[hobala]

When installing the WebGUI for the HP StorageWorks Library  and Tape Tools (5.2) I get the following error:

HP Library and Tape Tools WebGUI - InstallShield Wizard

"Cannot find the PostgreSQL path."

This happens after deinstallation and re-installation (WebGUI could not connect to LTT service).

The installation then aborts.

Any ideas where this could come from?

I do not find anything related to HP LTT and PostgreSQL as I even don't think this is a prerequisite.

[Leon Rosier]

I get the exact same error. Also after uninstall. 

[FredVianet]

I have the same problem, after a resinstallation ...

Thanks to post an answer as soon as it is available

[FredVianet]

with regedit

for win32 systems, suppress :

HKEY_LOCAL_MACHINE\SOFTWARE\Hewlett-Packard\HP_Library_And_Tools_WebGUI

HKEY_LOCAL_MACHINE\SOFTWARE\Hewlett-Packard\LTT_9x_DB_KEY

HKEY_LOCAL_MACHINE\SOFTWARE\Hewlett-Packard\LTT_Config

HKEY_LOCAL_MACHINE\SOFTWARE\Hewlett-Packard\LTT_FW_KEY

for win64 systems, suppress :

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Hewlett-Packard\HP_Library_And_Tools_WebGUI

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Hewlett-Packard\LTT_9x_DB_KEY

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Hewlett-Packard\LTT_Config

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Hewlett-Packard\LTT_FW_KEY

it was possible for me to re-install after suppress those keys.